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Finding the Fourth Proportional to 290,088.71, 400,329.31 and 162,773.72

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Solution

The fourth proportional to 290,088.71, 400,329.31 and 162,773.72 is: 224,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,088.71 : 400,329.31 = 162,773.72 : x
  2. Step 2: Convert to fraction form
    290,088.71/400,329.31 = 162,773.72/x
  3. Step 3: Cross multiply
    290,088.71x = 400,329.31 × 162,773.72
  4. Step 4: Simplify right side
    290,088.71x = 65,163,088,605.15
  5. Step 5: Solve for x
    x = 65,163,088,605.15/290,088.71
  6. Step 6: Final answer
    x = 224,631.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.